How can we solve for a X-linked trait gene problem? . If a heterozygous parent (AB/ab) is testcrossed to a homozygous recessive (ab/ab), what will the progeny phenotypic ratio be if genes A and B are completely linked

Q: A linkage map shows the distance between gene 'a' and gene 'b' to be 40CM, how many of each genotype…

A: Punnett Square Geneticslinkage map shows that the distance between gene a and gene b is 40…

Q: Convert the expected phenotypic ratio from Part A into the expected probability for each of the four…

A: Dominant traits Round fruit (R) Red fruit (F) Recessive traits oval fruit (r) Yellow fruit (f)…

Q: Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower…

A: In the given context, there are two independent genes, denoted as A and B, which are responsible for…

Q: A cross like this (between two individuals heterozygous for two traits) is often referred to as a…

A: A two-point cross includes two parents heterozygous for two different loci.

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants…

A: Answer: DIHYBRID CROSS : It is the cross made between two traits of an individual.  Phenotypic…

Q: Both red/green color blindness (R=normal, r=colorblind) and Duchenne-type muscular dystrophy…

A: X-linked recessive inheritance is the genetic condition that can be passed from parent to child…

Q: Since the white‑eye trait is X‑linked recessive, what result would you expect when crossing a…

A: A character which express by a recessive gene i .e. the gene is suppressed by dominant gene  is…

Q: The ability to detect the bitter taste of Phenylthiocarbamide (PTC) is inherited. “Tasting” is…

A: Genes control the character of organisms. The alternate form of a gene is called alleles. Alleles…

Q: In guinea pigs, black fur is dominant over brown fur, and short hair is dominant over long hair.…

A: Answer: Mendel was the scientist who proposed or discovered the LAW of INHERITANCE. There are three…

Q: All crosses involve many more than one character. So far, only one character has been examined to…

A: The cross between the two organisms to study the two contrasting characteristics or traits is called…

Q: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants…

A: Dihybrid cross: A dihybrid cross occurs between two organisms that are identical hybrids for a given…

Q: Using the pedigree chart attached: Above is a pedigree for colorblindness. Based on the pedigree,…

A: Pedigree is a representation in the form of a diagram or family tree of inheritance of genetic…

Q: The pedigree below shows a pedigree for a completely penetrant X-linked trait caused by a recessive…

A: The Pedigree shows X linked recessive trait. In this type of inheritance pattern the mutation lies…

Q: Duchenne muscular dystrophy (DMD), marked by muscular degeneration, results from an X- linked…

A: Duchenne muscular dystrophy is a X- linked inherited disease which is characterized by degeneration…

Q: In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and…

A: An allele can be recessive or dominant & in the given question two pairs of allele are mentioned…

Q: snail, the dominant allele N codes for right-handed shell coiling and recessive allele n codes for…

A: Genes exist in two versions namely"recssive" and "dominant". The recessive alleles are those that…

Q: . In Figure 2-17, how does the 3:1 ratio in the bottom-lefthand grid differ from the 3:1 ratios…

A: Sex-linked genes are basically different from autosomes thereby, their inheritance pattern also…

Q: In jellyfish, let's say that long tentacles are produced by a sex-influenced allele that is dominant…

A: Given information In jellyfish, long tentacles are produced by a sex-influenced allele. The allele…

Q: Raspberry eyes (ras) is a sex-linked recessive trait in Drosophila. Eyeless (ey) is an autosomal…

A: Within this particular cross:The male individual exhibits the wild-type phenotype, indicating that…

Q: Could the pedigree in Figure 2-31 be explained as an autosomal dominant disorder? Explain.

A: The genetic and phenotypic traits being passed from one generation to the other are called…

Q: Consider the imaginary trait, bristles with split-ends, a trait hypothesized to be X-linked…

A: Introduction :- A dominant gene is carried on the X chromosome in a process known as X-linked…

Q: The pedigree below shows a family where several members (filled boxes) are affected with a genetic…

A: Pedigree : Pedigree analysis is a graph that depicts a family tree and shows which family members…

Q: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants…

A: According to the concept of genetic linkage, when genes are far apart or on the different…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants…

A: The test cross is another fundamental tool devised by Mendel . In its simplest form, a test cross is…

Q: homozygous recessive (aa,tetrapter) f1 produces homozygous (aa) f2, what is the dominant and…

A: Recessive character is expressed only in homozygous form. On the other hand,  dominant character is…

Q: Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Let’s say we are crossing flies with a “big head” mutant trait with flies that have normal sized…

A: Introduction :- A dominant allele is an allele that masks the expression of a recessive allele,…

Q: When looking at an X-linked recessive trait, if an affected mother and an unaffected father have a…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: The phenotypes and genotypes that result from a cross of Aa and aa (A = normal pigmentation and a =…

A: Albinism is a category of hereditary disease in which the body produces little or no melanin. Skin…

Q: What is the approximate percentage chance that individual V.2, shown in the pedigree diagrams above…

A: A recessive attribute is one that may be detected within the relationship between 2 variants of a…

Q: In humans, the allele for red-green color blindness is X-linked and recessive. An XY man with normal…

A: Color blindness is an X-linked, recessive genetic disorder that hampers the ability of a person to…

Q: Red-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier),…

A: The X-linked genes show a different pattern of inheritance in males and females. The male progeny…

Q: FRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1…

A:

Q: Assuming a pure-breeding P generation, what ratio would you expect in the F2 generation if a mutant…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: A sex-linked recessive allele rg causes a red-green colorblindness in humans. A normal woman whose…

A: Mostly the sex-linked diseases are X-linked ( unless stated otherwise). These alleles are found only…

Q: 6. Here is a cat family. Back fur is created by BB or Bb. White by bb. a) Based on what the pedigree…

A: Given: Black fur - BB / Bb White fur - bb

Q: An allele for coat color in mice, Y, produces a yellow coat color when present. The phenotypes of…

A: The combination of some of the alleles show lethal phenotype.

Q: In alley cats, the coat color is determined by a gene carried on the X-chromosome. At the same time,…

A: The objective of the question is to determine the probable paternity of a litter of kittens based on…

Q: Hemophilia is caused by an X-linked recessive mutation in humans. If a man whose paternal uncle…

A: In the disease called “haemophilia”, if a wound is created, the blood does not clot normally. This…

Q: Imagine a cross between a man and a woman having the following genotypes:    Genotype of the…

A: Dominant allele In genetics, it refers to the situation of one allele masking the affect of other…

Q: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants…

A: A test cross is a way to explore the genotpye of an organism. When a dominant phenotype i.e…

Q: In horses, two different genes affect the coat. One gene which codes for coat colour has 2…

A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…

Q: In one of his experiments, Mendel crossed homozygous yellow plants with homozygous green plants. The…

A:

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.